package collection;

import java.util.*;

public class SortInteger {
    public static void main(String[] args) {
        Random random = new Random();
        List<String> list= new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            list.add(String.valueOf(random.nextInt(100)));
        }
        System.out.println("list:"+list);
        Collections.sort(list);
        System.out.println("升序:"+list);
        Collections.reverse(list);
        System.out.println("反转:"+list);
        System.out.println(list.get(0));//第一个数
    }
}